believe in sb/believe sb/trust的区别

believe in sb/believe sb/trust的区别
1\He often tells lies.But last night,I ___him.
2\It won't do to____to luck.
3\A liar is not ___when he speaks the truth.
4\He is a operson I wouldn't ____with anything.
5\You can___him;he will never let you down.
6\I___keeping early hours.
7\We all____Marxism.
我查了字典还是不太明白~